Run the numbers before anyone quotes you.
Nine tools that answer the questions a retrofit starts with: what your home needs, what order to do it in, and what the work should cost. Every figure cited, every rebate stamped with a verification date.
Start with the plan, not the purchase.
The two tools that frame everything else: what your home is owed, and what order the work should happen in.
Your Retrofit Plan
Turns your home's details into a phased roadmap: what order to do the work, what each phase costs, and which rebates stack.
Build your planRebate Matcher
Matches your planned upgrades to the federal, state, and utility programs you qualify for, each with a verified-as-of date.
Match your rebatesRight-size before you price.
Capacity and depth first. An oversized heat pump and a thin attic both cost you every month.
Heat pump sizing calculator
Estimates the capacity your home needs in BTU/hr and tons, adjusted for climate zone, insulation, and ceiling height.
Run the sizing calculatorMini split sizing calculator
Estimates BTUs for one room or the whole house, with suggested head sizes and the case against oversizing.
Size your roomsAttic insulation depth calculator
Shows your target R-value and how many inches of blown-in to add, from your state and your current depth.
Check your atticKnow the range before the quote arrives.
Installed-price and running-cost estimates built from cited data, so a real quote has a benchmark to land against.
Heat pump cost calculator
Estimates your installed price range from home size, system type, ductwork, and electrical needs, with every driver itemized.
Estimate your installInsulation cost calculator
Estimates what attic, wall, or basement insulation should cost, from cited per-square-foot ranges.
Estimate the jobHeating fuel cost comparison
Compares the delivered cost of heat for oil, propane, natural gas, and heat pumps, at prices you can edit.
Compare your fuelsHeat pump water heater savings
Estimates annual savings and payback for a heat pump water heater against your current fuel and household size.
Check the paybackPut the estimate in front of a contractor.
Tell us your project and we match you with up to 3 licensed local contractors who know your state's programs. Free, no obligation, and your info goes only to contractors you choose.